Sash-fastener



(No Model.)

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UNITE STATES P TENT OFFICE.

SASH-FASTENER.

srncrsronrrolv forming part a LettersfPa tent No. 547,883, dated October15,1895. Application filed February 11, 1895- Serial No. 637,942. (Nomodel.)

.To all whom it may concern.-

Be it known that I,- GEORGE SYLVESTER HALL, acitizen of the UnitedStates, residing at Salem, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements inSash-Fasteners; and I do declare the following to be a full, clear,andexact description of the'invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being hadato the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements insash-fasteners, referring more particularly to that class wherein twobolts acting at right angles fasten both the upper and the lower sash.

My invention provides an exceedingly simple and easily operated sashfastener, of which practically all the parts can be cast into theirfinal shape, thus being most readily manufactured.

In the accompanying drawings, wherein like letters represent likepartsin the several views, Figure 1 is a rear endview of the fastener.The breadth of the finger-piece by which the slide is pushed back andforth and the width of the slide are shown as equal to each other. Theincline of the sides of the casing is also presented. Fig. 2 is a sideelevation from within the house, looking out of the window, and theusual thickness of slide and finger piece with relation to the height ofthe casing is shown. In these two figures will be seen more than onebolt-hole, each in the window sash and frame, allowing the two sashes tobe fastened in various positions. Fig. 3 represents one of my fastenersremoved from the sash and viewed from beneath in order that the outlineof both bolts may be seen,the partly-hidden one in dotted lines. Fig. 4shows a modification of the slide. It is a view from beneath andrepresents a recess in the under surface to make room fora spring, aswill be more fully explained hereinafter. If while the casing is in theinverted position of Fig. 3 the two bolts be lifted out and viewed fromthe side, the outline presented by Fig. 5 will appear. Fig. 6

shows in outline a plan of the straight bolt viewed from below. Fig. '7is a top plan of my invention, showing the sash and pulleystile insection, and in dotted lines the positions of the ends of both bolts andof the slide when the latter has been pushed forward. The form ofthe'slide, showing the recesses in the side alternately occupied by thelug upon the upper surface of the casing, appears in this figure. Fig. 8is a top plan of the inner end of the casing, showing the slot throughwhich the screw joining the bolts reaches the slide. The lug projectingvertically upon one side of the upper surface of the casing is shown inboth Figs. 7 and 8.

A is the casing, having flanges drilled and countersunk for the passageof screws to fix the fastener upon the sash. The sides of the casinginclineinwardly toward the top. Near the end of the casing opposite tothat through which the ends of the bolts project the upper surface isprovided with a slot a and near the inner end of the said slot and atthe edge of the said upper surface of the casing a lug a rises to aboutthe height measured by the thickness of the slide. Near that end of thecasing which lies nearest the pulley-stile when in proper position alateral extension of the walls is constructed, as shown in Figs. 1, 3,and 7. The outer wall of this extension and the adjacent end wall of thecasing are pierced by apertures. suitably placed to receive the.

cylindrical ends of the bolts.

B represents the straight or direct-acting bolt. The lower surface b ofthe said bolt is plane and smooth, and when in position this surfacerests upon the meeting-rail of the lower sash and slides back and forththereupon when the devicev is operated. At one end the fiat surface 1)turns perpendicularly upward and at right angles with the parallel sidesof the main or body portion of the said bolt. This perpendicular partand the horizontal portion of this section of the bolt are of uniformthickness, as ordinarily constructed. Near the other end of the fiat andhorizontal division of the bolt the upper surface rises perpendicular tobut diagonally across the said fiat surface, and this diagonalusuallybears a fixed relation to the angle formed in the second bolthereinafter to be described.

Both perpendicular sections of the said bolt B are of the same height,that last described being of greater thickness and of the somewhatirregular shape best shown in Fig. 6. The conformation of the piece asabove set out leaves one side of the upper surface of the horizontalpart longer than the other, and on that side of the bolt parallel withthe lateral lines of the horizontal part, but having its highest line ona level with the upper surface of the perpendicular sections described,the cylindrical end of the bolt B projects. This last-mentioned part isless in diameter than the height of the perpendicular parts, and it istherefore raised a certain distance above the sliding surface I). Thebolt-hole in the end of the casing, which has been already mentioned, isso placed as to receive the said cylindrical end. A smooth hole drilledthrough the horizontal fiat section of this piece and countersunk on thelower surface near the perpendicular and rectangular end finishes thispart of my invention. Its shape is unique, but it is set outin the threedifferent views given in Figs. 3, 5, and 6. The second bolt G is bent atan angle corresponding to that formed by the meeting of the shorter sideline of the upper surface of the horizontal section of bolt B, of whichb is the lower surface, and the surface previously described as risingperpendicularly to but diagonally across the said upper surface. Thebolt 0 possesses a cylindrical section and a section of which the upperand lower surfaces are flat. The greatest breadth of this part is nearthe end of the bolt, and it is provided with a smooth hole through thisbroad end, the diameter of the aperture being the same as of that boredthrough the first bolt. The cylindrical section of bolt 0 is adapted topass through the bolt-hole in the outer Wall of the lateral extension ofthe casing already mentioned. Figs. 3 and 5 will show the form andrelative thickness of bolt 0 with relation to the remaining parts of myinvention.

D represents the slide, a plain fiat block of metal, usually of aboutthe same Width of the upper outside surface of the casing upon which itrests. Near one end a hole is drilled from the under side partly throughthe said slide and a screw-thread tapped therein, or the hole may bebored quite through the piece, and the part connecting the two boltswith the slide can be treated as a rivet and headed up on the uppersurface of the slide. Near its remaining end the slide has aperpendicular cross-piece d, to be grasped by the thumb and forefingerwhen operating the fastener,

and at and near this end are located the recesses d in one side, whichare adapted toreoeive the lug a already mentioned. The recess nearestthe end of the slide enables the part to rest evenly upon the casingwhen both boltsare completely drawn in. The second recess retains theslide in position when the bolts have been thrown and preventsaccidental displacement. I may prefer to modify the construction of theslide D by providing a recess in its under surface to permit the use ofa bent spring E. The office of the said spring is to maintain thecontact between the recesses d in the slide and the lug a An extremityof one leg of the spring is bent at right angles with the plane of theremainder and enters a hole drilled into the casing. The other leg ofthe spring presses against the inside of the slide near the recesses (1The parts of my fastener may be assembled as follows: In the invertedcasing is laid the angle-bolt C with its cylindrical end just enteringthe bolt-hole in the lateral extension. The bridge of the straight boltB then covers the first-mentioned bolt, and a screw 11 having a smoothshank and a threaded end, is passed through both bolts and through theslot 0. in the casing, and the screw portion engages the threadsprovided in the hole bored in the under surface of the slide. The partsare now held together, and the fastener may be turned right-sideuppermost.

The operation is thus performed, supposing the bolts to have been drawninto the casing as far as possible. This condition is reached when thescrew-joining bolts and slide come in contact with the end of the slot0. which is farthest from the lug a. In this situation the cylindricalends of both bolts rest within but do not project through the bolt-holesin the end and side of the easing, being therefore always so placed asto be readily shot forward. The recess at the end of the slide isoccupied by the lug, and it will be observed that a motion to one sidemade upon the connecting-screw as a pivot enables the slide to clear thesaid lug, and the bolts may be moved forward, as indicated. When thesecond recess d is brought opposite the lug, the slide is again turnedparallel with the casing and the fastener is locked. The spring E, whenused, aids in making and maintaining this position of the parts. It willbe noticed that the cylindrical extremity of bolt (J turns in thelateral hole in the casing as the parts move forward and approaches moreand more nearly aperpendicular to the path of the straight bolt as themovements proceed.

Having thus described my invention, what I claim is-- 1. In a sashfastener of the character described, a suitablecasing havingalongitudinal slot through the top and alug projecting Vertically fromthe upper surface, in combination with the pivoted operating thumb slideprovided with recesses in its side to engage the said lug, the directacting bolt and the pivoted angle bolt bothwithin the casing andpivotally connected through the said slot with the said slide, the wholesubstantially as and for the purposes shown and described. I go cessesin the side to engage the said lug and v In testimony whereof I affix mysignature a shallow cavity for the admission and (gen? in presence oftwo witnesses. tion of the bent spring, E, the bolt, t e pivoted anglebolt, 0, both connected through GEORGE SYLVESTER HALL 5 the said slot,pivotally, with the said thumb Witnesses:

slid e, the whole as and for the purposes shown A. G. RICHARDSON, anddescribed. FLORENCE I. BRADFORD.

